Spruce bark is rich in phenolic compounds that protect trees from pathogenic fungi. A research team at the Max Planck ...

Spruce bark beetles use the plant defense compounds in spruce bark as a protective mechanism. After feeding, they metabolize ...

A new machine-learning system can automatically produce detailed maps from satellite data to show locations of likely beetle-killed spruce trees in Alaska, even in forests of low and moderate ...

Adult spruce bark beetles in their galleries in the bark of a Norway spruce tree. The beetle in the middle is infected with the fungus Beauveria bassiana.

The bark beetles are here. Actually, the bark beetles that kill mountain trees are always around, San Juan National Forest representatives told a small group of Vallecito residents Tuesday evening.

The Town of Vail will begin the removal of approximately 26 spruce trees in the vicinity of the Grand Hyatt in Cascade Village starting on Monday, Oct. 7. The dead and dying trees have been identified ...

The study area is centered on the Susitna Lowlands in SC Alaska, a mosaic of mixed forest and wetlands, appearing in green and brown in the 2013–2015 Landsat −8 composite (a), respectively. Credit: ...

Spruce bark is rich in phenolic compounds that protect trees from pathogenic fungi. A research team at the Max Planck ...

A new machine-learning system developed at the University of Alaska Fairbanks can automatically produce detailed maps from satellite data to show locations of likely beetle-killed spruce trees in ...

HAINES JUNCTION, Yukon Territory -- A veil of smoke settled over the forest in the shadow of the St. Elias Mountains, in a wilderness whose spruce trees stood tall and gray, a deathly gray even in the ...

In the Thuringian Forest or the Harz Mountains, dead spruce trees (Picea abies) dot the landscape like skeletons. Many have already fallen or been cut down. These dead trees serve as memorials to the ...

Lately, visitors to the Koli National Park have been met with a sight of dead trees in the nature reserve. Global warming is contributing to increasing forest damage in Finland and elsewhere in the ...